Structure of the recoiling system in direct-photon andπ0production byπ−and

G. Alverson

¹

,

W. Baker

²

,

G. Ballocchi

³

et al.

Abstract

We present the results of a study of hadronic jets produced in association with direct photons and xo's at large transverse momenta in T-Be and pBe collisions a t 500 GeVlc. Using primarily charged particles to characterize the properties of the recoiling jets, we compare their fragmentation and angular distributions, and their correlation with the trigger particle, for both the y and x o event samples. We also compare the data with QCD calculations that incorporate current parton distribution functions. PACS number(s): 13.85. Qk, 12.38.Qk, 25.40.Ve, 25.80.L~

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